04.01.2013 Views

TranSystems Corporation - LGM Construction

TranSystems Corporation - LGM Construction

TranSystems Corporation - LGM Construction

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

501070099 Federal Express Oakland Sort Expansion Issued for Bid 10/11<br />

2.5 GLAZING GASKETS<br />

A. Dense Compression Gaskets: Molded or extruded gaskets of profile and hardness required to maintain<br />

watertight seal, made from one of the following:<br />

1. Neoprene complying with ASTM C 864.<br />

2. EPDM complying with ASTM C 864.<br />

3. Silicone complying with ASTM C 1115.<br />

4. Thermoplastic polyolefin rubber complying with ASTM C 1115.<br />

B. Soft Compression Gaskets: Extruded or molded, closed-cell, integral-skinned neoprene, EPDM, silicone,<br />

or thermoplastic polyolefin rubber gaskets complying with ASTM C 509, Type II, black; of profile and<br />

hardness required to maintain watertight seal.<br />

1. Application: Use where soft compression gaskets will be compressed by inserting dense<br />

compression gaskets on opposite side of glazing or pressure applied by means of pressure-glazing<br />

stops on opposite side of glazing.<br />

C. Lock-Strip Gaskets: Neoprene extrusions in size and shape indicated, fabricated into frames with molded<br />

corner units and zipper lock-strips, complying with ASTM C 542, black.<br />

2.6 GLAZING SEALANTS<br />

A. General:<br />

1. Compatibility: Provide glazing sealants that are compatible with one another and with other<br />

materials they will contact, including glass products, seals of insulating-glass units, and glazing<br />

channel substrates, under conditions of service and application, as demonstrated by sealant<br />

manufacturer based on testing and field experience.<br />

2. Suitability: Comply with sealant and glass manufacturers' written instructions for selecting glazing<br />

sealants suitable for applications indicated and for conditions existing at time of installation.<br />

3. Sealants used inside the weatherproofing system, shall have a VOC content of not more than 250<br />

g/L when calculated according to 40 CFR 59, Subpart D (EPA Method 24).<br />

4. Sealants used inside the weatherproofing system shall comply with the testing and product<br />

requirements of the California Department of Health Services' "Standard Practice for the Testing of<br />

Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."<br />

5. Colors of Exposed Glazing Sealants: As indicated by manufacturer's designations.<br />

B. Glazing Sealant: Neutral-curing silicone glazing sealant complying with ASTM C 920, Type S, Grade NS,<br />

Class 100/50, Use NT.<br />

C. Glazing Sealants for Fire-Rated Glazing Products: Products that are approved by testing agencies that<br />

listed and labeled fire-resistant glazing products with which they are used for applications and fireprotection<br />

ratings indicated.<br />

2.7 GLAZING TAPES<br />

A. Back-Bedding Mastic Glazing Tapes: Preformed, butyl-based, 100 percent solids elastomeric tape;<br />

nonstaining and nonmigrating in contact with nonporous surfaces; with or without spacer rod as<br />

GLAZING 08800 - 7

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!